Airplane wheel



June 13, 1933;

J. R. EAID AIRPLANE WHEEL.

Filed May 16, 1950 Patented June 13, 1933 i UNITED LPATE Joni; Bi we, orciirofnqo, innriwois Application filed May 16,-

10 companying description.

Referring" now to the drawing: 1 Fig. lis aside view with the side plateomitted showing oneforin of wheel embodying the invention." 7 i i Fig. 2is asectional, 2+2 ofFig. l. i Like numerals refer to like out theseveral figures. y The wheel is made up of two sections, an outersection and an inner section, with springs between them soarranged thatregardless of the direction of motion of the Wheel in the landing of theairplane, this motion is resisted by springs, therebeing no solid partsto come in contact with each other during this movement. All the springsmove in unison when the movement occurs and all springs act at theshocks. i i i i i Referring now tothe drawing, I have shown an outersection l having upon it any suitable tire supporting rim 2. There is aninner section?) provided with an opening 4 for theaxle. A hub 5 isprovided,having the hub plates 6. The axle is shown in place to moreclearly bring out the operation of the parts. Plates 7 and 8 are spacedapart and are placed on each side of the central section 3 and areconnected to the central sec tion by bolts 9. These plates are providedwith slots 9a for these bolts. 1 i i The outer section 1 is provided atintervals with theinwardly. projecting members 10, which are separatedbyspaces 11 and which i are recessedat 12. In thevspaces 11 are a seriesof springs13, 14, 15 andl16, all of which view taken on line partsthroughengage a centrally located spring engaging 5 part17. a

The walls around the opening 4 are prefer the same time to resist"provided withrecesses 18 for theends' of the springs 13, 14 and 15. Thesprings 16 qengagethe central section 3. Located between the springs 16are springs 19 which [engage the projections 10,the ends fitting:intothe recess12. The central section? is provided with aseries ofrecesses 20 into which the other ends of the springs 19 fit, as clearlyshown in Fig. 1. It will be noted 1 that the springs 16 and 19 overlap;that is,* U part of eachspring 16 is in the same circumferential linecontaining a part of the spring 19. a Th s construction permits longsprings to be used and permits a maximumnumber of 5 springs in the spacewhich the wheel provides.

connected to the plates 7 and 8 by the con- The spring engaging parts 17are necting elements 21. The plates 7 and 8 slide along the outer partof the outer section 79 therebeing suificient space between the outeredges and the rim 2 to permit the desired movement between the outer andinner sections. The springs are placed in position under-compression butare arranged to give 5 the proper amount of movementwhen the airplanelands so as to properly resist and break the shock. i

It will be seen that from this arrangement itmakes no difierence uponwhat part of the periphery the wheels land, for the same a shockresisting action will be produced all} i around the periphery and allthe springs will act simultaneously to resist the shock.

I claim: I p 1. ,An airplane wheel comprising an outer section and aninner. section, a series of springs interposed betweenthem and engagingboth the inner section and the outer sec tion, an intermediate series ofsprings engag= ing the inner section anda spring engaging part inarecess in the outer section engaged by each of said latter springs, anda plurality of springs engaging the spring engaging part and engagingtheouter section. 1 r 2. An airplane wheel comprising an outer section andan inner section, a series of springs interposed between them andengaging both the inner section andthe outer section, an intermediateseries of springs engag T FFIC 1 ice ing the inner section and a springengaging part in a recess in the outer section engaged by each of saidlatter springs, and a plurality of springs engaging the spring engagingpart and engaging the outer section, said latter springs being shorterthan the first mentioned springs.

3. An airplane Wheel comprising an outer section and an inner section, aseries of springs interposed between them and engaging both the innersection and the outer section, an intermediate series of springsengaging the inner section and being of the same length as said firstinentioned springs, and a spring engaging part in a recess in the outersection engaged by each of said latter springs, and a plurality ofsprings engaging each said spring engaging part and engaging thevoutersection.

Signed at Chicago, county of Cook and State of Illinois, this 13th dayofMay V1930. 7 JOHN :R.

